I'm trying to use Marvin Molconverter node to convert smiles to 3D structures. Googling around I found that in the batch version of molconverter this is done using the “-3” option, and “-3:[prehydrogenize]” to output hydrogen atoms explicitly.
Nevertheless when I add these options in the to the "Output Options" box, the Molconverter node triggers the warning “Unknown option(s)”.